Transcription/Amino acids

• How many amino acids are used to make proteins?


  20 amino acids
• How many bases code for each amino acid?


  A sequence of three bases
• Where are proteins made in the cell?


  In the cell cytoplasm on ribosomes
• What is the role of mRNA?


  It carries the code from DNA to the ribosome
• What is the function of tRNA?


  It brings the correct amino acids to the ribosomes in the correct order
• What are the functions of proteins?


  • Enzymes: Catalyse chemical reactions
  • Hormones: Carry messages in the body
  • Structural proteins: Provide strength and support
• What happens to structural proteins like collagen if their shape is changed?


  They could lose their strength and function